OP - sounds to me like you enjoy a manual (like many of us). The DCT will not replace the feel of a foot clutch. The feel of the car with DCT is different. You should go test drive one, that's the only way for you to know if its right for YOU. This car is great either way.
Like you, I love a foot clutch - nothing like it. I got the M3 with a DCT though so my wife could drive it too (I have another manual car) and I really like the DCT, but its not the same as a 6MT. Not better, not worse, just different.
So if you want a foot clutch get it. Don't get a DCT just for launch control- I think that would be a mistake for you - but I would recommend driving a DCT first just to satisfy your curiosity.
2011 E90, Melbourne Red, Bamboo, DCT, Premium, Comfort, Cold, Enhanced Stereo, Apps
"I don't drive fast, I just fly low."